Do Trojan Asteroids Have the Brightness Opposition Effect

1 , Yu. N. Krugly 1 , I. N. Belskaya 1 , V. G. Chiorny 1 , N. M. Gaftonyuk 2 , I. G. Slyusarev 1 , I. A. Tereschenko 1 , Z. Donchev 3 , V. Ivanova 3 , G. Borisov 3 , M. A. Ibrahimov 4 , A. L. Marshalkina 4 , I. E. Molotov 5 , 1 Astronomical Institute of Kharkiv Karazin National University, Sumska Str. 35, Kharkiv 61022, Ukraine, shevchenko@astron.kharkov.ua, 2 Crimean Astrophysical Observatory, Crimea, Simeiz 98680, Ukraine, 3 Rozhen Astrophysical Observatory, Rozhen, Bulgaria, 4 Ulugh Beg Astronomical Institute, Uzbek Academy of Sciences, Astronomicheskaya 33, Tashkent 100052, Uzbekistan, 5 Keldysh Institute of Applied Mathematics, RAS, Miusskaya sq. 4, Moscow 125047, Russia.